Means for raising and lowering combustion-tubes.



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MEANS FQR RMSINIAND LOWERING COMBUSTI'ON TUBES. APPLICATION FILED FEB.5. 191s.

1 ,200,261 Patented Oct. 3,1916.

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30 wick tubes.

' 45 ing means.

UNITED STATES PATENT OFFICE.

LOUIS STOCKSTROIVI, OF ST. LOUIS, MISSOURI, ASSIGNOR TO AMERICAN STOVECOLI- PANY, OFVST. LOUIS, MISSOURI, A CORPORATION OF NEW JERSEY.

MEANS FOR RAISING AND LOWERING COMBUSTION-TUBES.

Applcation'led February 5, 1915.

be readily raised and supported away from the wick tubes so that theburner can be readily lighted and can be readily lowered after theburner has been lighted. The structure is also such that the combustion,tubes may be supported above and away from the wick within the wicktubes so that the oil by capillary attraction will not work its way upon the combustion tubes when the stove is not in operation. In

stoves in which wicks are used, it has been found that the oil bycapillary attraction from the wick works its way up upon the combustiontubes when the said tubes are left in their lower position resting uponthe This causes the stoveto smoke when the stove is first lighted causedby the burning off of the oil that has worked its way up upon thecombustion tubes.

Another object of my invention is to provide a simple, cheap andeffective means whereby the combustion tubes can be readily raised fromthe wick tubes and held in a raised position and having certain detailsof structure and operation hereinafter more lfully set forth.

Referring to the drawings, Figure 1 is a vertical sectional view of aburner showing the combustion tubes supported by thek wick tubes andshowing my improved rais- Fig. 2 is an enlarged perspective view of thecombustion tube raising means.

Referring now to the drawings, 1 represents an ordinary wick burnerformed of the inner wick tube 2 and the outer wick tube 3 between whichis arranged the wick 4, all of which are of the ordinary construction.The lupper ends of the inner and outer wick tubes are provided withshelves 5 and 5B 6 upon which are supported the perforated combustiontubes 7 and 8 forming the com Specification of Letters Patent.

Patented Oct. 3, 1916.

Sera1No.6,339.

bustion section. These tubes are connected together in the ordinarymanner. The wick 4 is raised and lowered by any desired means, and Ihave not shown the same.

The shelf 5 is formed rintegral with the perforated diaphragm 9. Thisdiaphragm is provided-with a central opening 10 hav-V ing securedtherein an upwardly extending enlarged portion 11 provided with acentral opening 12. The upper end of this enlarged portion 11 isslightly reduced and screw-threaded as indicated at 13. Resting'y uponthe liange 14 of the enlarged portion 11 is a wick stop 15. This wickstop, as shown, is of a disk shape having perforations therein and heldupon the portion 10 by means of the nut 16. The outer end ofr the wickstop is turned downwardly at 17 and rests upon the diaphragm 9. The eX-treme outer edge of the downwardly turned portion 17 of the wick stop isprovided with upwardly extending portions 18 having laterally turnedends 19 which extend across the space above the inner wick tube 2 andthe outer wick tube 3, and form stops for limiting the upward movementof the wick.

The inner wick tube 1, adjacent its lower end. is provided with atransverse bar 2O having a central openingvtherethrough and throughwhich loosely passes the vertical movable rod 21. This rod 21 extendsupwardly through the opening 12 in the enlarged portion 11 carried bythe diaphragm 9 and rests within the socket 22 carried by the plate 23secured within the inner combustion tube 7. This plate is provided withopenings to allow of the passage of air through the combustiontube. Bythis arrangement, it will be seenk that when the ro'd 21 is movedupwardly, the combustion section is likewise moved upwardly andsupported by the said rod. The lower `end of the rod isprovided with a`disk 24 rigidly secured thereto. c

Secured to the lower end of the wick- -the shaft 29 it will be seen thatthe vertically disposed rod 21 is raised and lowered, and whereby thecombustion tubes are raised and lowered. The flattened portions 33 and34 are so arranged in respect to the crank 30 that the crank is in adownward position when the flattened portion 33 is in engagement withthe disk 24 carried by the rod 21, and the flattened portion 34 againstthe disk when the crank is in a raised position shown in dotted lines Fig. 1.

As shown the rod 21 is round and passes loosely through the bar orguideway 2O at the lower portion of the wick tube 1, and as shown passesloosely through the enlarged portion or connection 11, by reason ofwhich the rod 21 and disk 24 rotate when the cam 32 is rotated inengagement with the disk 24, due to its eccentric relation to the axisof the rod'21 and disk 24. This prevents a sliding action between thecam 32 and disk 24 which would create considerable friction between thedry engaging surfaces of the two members and make the parts work hard.Due to the turning movement of the rod 21 and disk 24, the cam rolls onthe' outer surface of the disk 24, thus avoiding this friction andmaking the parts work easily and without any appreciable wear. Also asshown the upper end of the rod 21 is round where it extends within thesocket 22 to permit the rotation of the rod as before stated.

By the arrangement of the two flattened portions 33 and 34, it will beseen that the weight of the combustion tubes upon the rod 21 causes thedisk 24 to at all times enthe member 32, and when the flattened portion33 is in the position shown in F ig. 2 of the drawings, the combustionsections are lowered and the member 32 held in said position.

By operating the crank 30 to bring it in a vertical position, it will beseen that the rounded. or oval end of the member 32 engages-the disk 24forcing the same up` weight of the combustion section does not have anytendency to operate or oscillate the member 32 and thus the combustionseotions are held by their own weight in a raised position.

Having thus fully described lmy invenrLetters Patent is 1. In a burner,the combination with a wick tube, a fuel supply pipe arranged below thecenter of the wick tube and a vertically movable combustion section, ofa vertically movable rod supported within the wick tube, the upper endof the rod engaging the combustion section, a disk carried by the lowerend of the rod, the lower end of the rod over the fuel supply pipe, anda rotatable cam engaging the disk at a point eccentric to the axis ofthe rod and disk and arranged at one side of the fuel supply pipe, thecam projecting upwardly at all times above the fuel supply pipe,`wherebythe disk is kept out of engagement with the said pipe.

2. In a burner, the combination with a wick tube, a fuel supply pipearranged be` .low the center of the wick tube and a verof the rod overthe fuel supply pipe and aV rotatable cam engaging the disk at a pointeccentric to the disk and at one side of the fuel supply pipe, the camprojecting upwardly at all times above the fuel supply pipe whereby the.disk is kept out of engagement with the said pipe, a crank shaft forrotating the said cam, a bracket carried by the wick tube.v the saidcrank shaft having bearings within the said bracket.

3. 1n a burner, the combination with a wick tube, a fuel supply pipearranged below the center of the wick tube and a vertically movablecombustion section, of a vertically movable rod supported within thewick tube, the upper end of the rod engaging the combustion section, adisk carried by the lower end of the rod, the lower end of the rod overthe fuel supply pipe, a

bracket carried by the wick tube above the fuel supply pipe, acrank-shaft rotatably mounted within the said bracket, a cam on theinner end of the said shaft, the said cam engaging the disk carried bythe vertically movable rod eccentric to the disk and at one side of thefuel supply pipe, the upper edge of the cam mounted above the fuelsupply pipe due to the location of the bracket which supports it,whereby the disk will at all times be kept out of engagement with thesaid pipe.

In testimony whereof I hereunto aflix my signature in the presence oftwo witnesses.

LOUIS STOOKSTROM.

lVitnesses GEO. P. HAMMAN,

MAX LEPLIN.

Gopieis` of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents.

Washington, D. C."

